Lighting-fixture.



W. LUML EY. LIGHTING FIXTURE. APPLICATION FILED s'umzs. 1913.

1,206,561. Patented Nov. 28,1916.

2 SHEETS-SHEET I.

Witnesses: Q 1 Inventor:

' His DTttorneg.

W. LUMLEY.

LIGHTING FIXTURE.

APPLICATION FILED SEPT. 26. 1913.

1 ,2Q"6,56 1 Patented Nov. 28, 1916.

2 SHEETS$HEET 2.

.kmsmm Witnesses: Inventor:

Wlhfld Lumley UNITED STATES PATENT UFFICE.

WILFRID LUMLEY, 0F CONNEAUT, OHIO, ASSIGNOR TO GENERAL ELECTRIC COMPANY,I

A CORPORATION OF NEW YORK.

LIGHTING-FIXTURE.

ingly hereinafter described such a. structure together with variousaccessory features and modifications.

Among the advantages which may be obtained through my invention are themounting of electric lamps of large candle power in such a manner thatthe portion of the fixture which receives the base of the lamp.

and is therefore most liable to be heated by conduction from the lamp,is ventilated so that overheating is impossible and the protection ofall the parts from the weather when the fixture is mounted out of doors.As will also be apparent from the structure hereinafter described, thefixture and its parts are simple and inexpensive of construction,present a. good appearance, and are rugged and durable. Various otheradvantages obtainable through the invention will hereinafter appear. Itwill of course be apparent to those skilled in the art that theinvention may be embodied, carried out and applied in forms diflerentthan those shown and described, as indicated by the scope of my claims.

In the accompanying drawing, Figure 1 is aperspective view of a fixtureconstructed in accordance with my invention and attached to abracketadapted to be secured to a wall, a post, or the like; Fig. 2 is a viewof such a fixture with certain modifications as regards the characterand mounting of the reflector and the mounting and support of thefixture itself, the modification last mentioned being such as to adaptthe fixture for mounting close to a ceiling; Fig. 3 is a perspectiveview of one of the parts shown in Fig. 1 as it appears when separatedfrom the rest after the fixture has been detached from the bracket arm;Fig. lis a plan view Specification of Letters Patent.

Patented N ov. 28, 1916. Serial No. 751,982.

of certain interior parts as seen after the detachment and removal ofthe bracket and the part illustrated in Fig. 3; Fig. 5 shows the fixturewith a. form of shade illustrated in Fig. 2 but with a suspension memberattached to the top such as may be employed when it is desired tosuspend the fixture by a chain, and in this figure the upper part shownin Fig. 3 appears in mid-section and the lower portion is shown as insection along the broken line 5-5 in Fig. 4; Fig. 6 shows the lampsocket and associated electrical parts as removed from the rest of thefixture; Fig. 7shows a. modified form of socket adapted to take a smalllamp and illustrates the manner in which it is to be mounted in place ofthe larger one.

Referring first to Figs. 1, 2, 3, at. and 5, it will be seen that thefixture comprises .a main body portion 1 and various other partsattached to or associated with it. In Fig. 1, it will be seen that thebody 1 holds a shade 2 of white porcelain or any other suitablematerial, and that at the top of the fixture there is a. fitting 3threaded or otherwise secured on one end of a tubular bracket arm *1:attached to a suitable bracket 5 adapted to be screwed or bolted to awall or post or any other object by screws extending through holes 6. i

In Fig. 2 the parts shown with the body portion 1 comprise a metalreflector 8 and a holder 9 which fits about the upper portion of thebody and is secured thereto by set screws 10 which engage in holes inthe body port-ion 1 or beneath a flange or a part attached thereto. InFig. 5 it will be seen that a fitting 4 is secured above the body 1,this fitting being provided with a ring P by means of which the fixturemay be suspended by a chain or in any other desired manner. Referring,now, more particularly to Figs. 3, 4, and 5, it will be seen that thebody 1 carries a socket 11 (shown as of the ordinary Edison screw type)for engaging with the base of a lamp. This socket, it will be seen, ismounted in a cavity 12 at the lower side of the body 1. type shown inFig. 5 has an upwardly projecting flange 13 which fits about the lowerend of the body 1. The portion of the reflector within this flange hasnotches 14, one of which is shown at the right of the figure, which fitabout the shanks of screws 15 en- The reflector 8 of the gaging withsuitable metallic parts carried by the body, and the shade is in thismanner securely mounted beneath the reflector and at the same timeeasily removable. This 5 shade may be of any desired construction and ofany suitable material, such, for example. as enameled sheet metal.

As will be seenfrom Figs. 4 and 5, the electrical connections to thesocket 11 are made at the upper side of the body 1 and are covered by apart 16 mounted above it, which, as shown, is separable from the body 1.As shown in Figs. 3 and 5, this cover is a dome shaped "flat piecehavingits lower edge slightly under-cut so that when it rests on theupper end of the part 1 it may extend down below the upper end of thepart 1 or ring and so keep out the weather. As shown in Figs. 1 and 5,the part 4 or 4 by which the fixture is supported is fastened to twobrackets 17 secured to the part 1 extending up through holes 18 in thecover 16 and having in their upper ends threaded holes for screws 19which pass through holes 20 in the sidesof the tubular lower end of thepart 4 or 4. In the boss 22 at the upper side of the part 16 are holes23 through which the electric wires may be introduced into the fixture,as shown in Fig. 5, although such wires may also enter the fixture inother ways as will hereafter appear. It will be seen that when the part4 or 4 is in place and the other parts arranged as shown in Figs. 1 and2, the upper side of the fixture is completely water-proof. It will beseen from Figs. 4 and 5 that in the cylindrical wall of the body whichsurrounds the cavity 12 in which the socket 11 is mounted there are anumber of vertical passages 24 having the form of cylindrical holes,these passages extending from the lower side or end of the body clear upto its upper side or end. It will further be seen that the upper end ofthe body 1 is enlarged by a flange-like outward extension 25, and thatin the flange 25 are a number of vertical holes or passages 26 whichextend from its lower side to the upper side of the body. It willreadily be seen that when the lamp is in place in the socket the heatfrom it will cause the air beneath the reflector to move upward from thepassages 24 into the space between the upper side of the body 1 and thelower side of the dome-like cover 16,'whence it will pass downwardthrough the upper passages 26 and escape, this exit from the spacebeneath the dome 16 being facilitated by the cooling action resultingfrom the exposed surface of the dome and of the flange 25.

Referring, now, to the direct electrical connections of the socket. itwill be seen from Figs. 4, 5 and (3 that the socket comprises a threadedshell 30 shaped like a F screw cap with a wide transverse cut in itsupper end. It will be seen that the upper end of this shell fits againstthe bottom of .the cavity 12, a projecting portion 31 in the bottom ofthe cavity lying in the cut in the upper end of the shell and-by itsengagement with it in this manner preventing it from turning. This shellis secured inplace by screws 32 which extend up through holes in thebottom of the shell and in the bottom of the cavity and engage withinternally threaded holes in a metallic part above. The center contactof the shell is formed by a part 33 which fits in a shallow groove inthe projecting portion 31 in the bottom-of the cavity and is secured bya screw 34 in very much the same manner as the shell itself. This centercontact has a spring-like form so as to yield somewhat when the lamp isscrewed into the socket.

The electrical connections from the socket to the wires are made throughthe screws 32 and 34. As will be seen from Fig. 4, there is in the upperside of the body 1 a crescent shaped cavity 35. At the bottom of thiscavity is a correspondingly shaped metal piece 36 (Figs. 4 and 5) .whoseends receive the screws 32 and at whose middle portion is a lug 37 towhich one wire may be secured by a screw 38. In the other side of thepart 1 is also another cavity 39 in which is a part 40 (see Fig. 6)which receives and engages the screw 34 and has an upwardly extendinglug 41 to which the other wire may be secured by a screw 42. Thus theconnections of the wires are made and the portions of them from whichthe insulation is removed for this purpose are located at pointsseparated by the wall 43 between the cavities 3'5 and 39.

The socket shown-in Figs. 5 and G is a large one adapted to take thelarge base commonly used on lamps of 200 watts or more. In Fig. 7,however, is shown a small socket of the size adapted for lamps of.comparatively low wattages in .the cavity 12 in place of the socket 11.This socket comprises a base portion 50 having a shallow transversegroove 51 in its upper side so that it is adapted to fit the bottom ofthe cavity 12 and having its lower side formed very much like the bottomof the cavity 12 itself. except that it has a central cylindricalprojection 52 with a cavity 53 therein. The threaded shell 54 has anupwardly extending flange 55 at its upper end. In the cavity 53 isarranged a center contact 56 of ordinary form. The screws 32 and 34which secure the socket and the center contact pass up through holes inthe porcelain part 50 and on up through the holes in the bottom of thecavity 12 and engage the parts 36 and 40 just as in the case of theother form of socket.

It will be seen that in the midst of the passages 24 are twodiametrically opposite vertical holes (only one of which appears in Fig.5). The lower portions of these holes are square in cross-section andcontain parts consisting, as shown, of short strips of metal 60 withtheir ends bent at right angles and having threaded holes therein. Theupper ends of these strips receive and engage screws 61 which passthrough lugs at the lower ends of the parts 17 and so serve at once tosecure the parts 60 and 17 in place. It will be observed that owing tothe shape of the holes 60 the parts just described cannot turn in themand that the lugs at the lower ends of the parts 17' lie in grooves inthe upper side of the part 1 and so are prevented from turning. It willalso be seen that the lower ends of the parts 60 receive and engage thescrews 15 previously mentioned by which the reflector 8 is held inplace. I

In the arrangement shown in Fig. 1, the wires 21 enter the body throughtwo of the holes or'passages 26. g

As shown in the drawings, the various portions of the body 1 may be madeintegral with one another and, to secure the necessary insulation of thevarious electrical parts, the body may conveniently be made wholly ofinsulating material such as'porcelain or bisque. As shown, the cover 16is also made of sin ilar material. These parts can be made in a mold ofsimple construction in a manner Well understood. by those skilled in theart. 'Thevarious metallic Darts are all of simple forms and can beeasily and cheaply made in various Well known ways. The parts arethemselves simple and can be readily and quickly assembled and takenapart.

What I claim as new and desire to secure by Letters Patent of the UnitedStates, is 1. An electric lighting fixture comprising an insulatingblock having therein means for supporting an electric lamp andelectrical connections therefor, a cover lng over the top of the Saidblock and sup-- ported thereby, a reflector orshade holding means, andmeans forfsupporting the latter independently of the said block.

'2. An electric lighting fixture.comprising an insulating block havingtherein means;

for supporting an electric lamp andelectrical connectionstherefor,aqreflector ,or shade holding means below said block, and

means extending through the said blockfor supporting the said reflectoror shade hold ing means independently thereof; v

3. An electric lighting fixture comprising an insulating block havingmeans therein for supporting an electric lamp and electrical connectionstherefor, a cover for the said block, a. reflector or shade holdingmeans located below the said block and engaging therewith and meansextending through the said block for supporting the said reflector orshade holding means independently of the said block and the said cover.

4. An electric lighting fixture comprising an insulating block having anupper peripheral flange and having means for supporting an electric lamptherein and electrical connections therefor, a reflector or shadeholding means below said block, ventilating passages extending throughsaid block and through the said reflector or shade holding means, a domeshaped cover for the said block, and passages extending through theaforesaid flange and connecting the space between the said cover and thesaid block with the outer air.

5. In an electric light fixture, the combination of a block ofinsulating material having cavities therein for the reception of anincandescent lamp and its electrical connections, metallic partsextending through the said block for supporting the same and forsupporting a shade or reflector below the same, and an insulating coversupported by the saidblock and extending beyond the periphery thereof.

6. An electric lighting fixture comprising an insulating block havingtherein means for supporting an electric lamp and electrical connectionstherefor, a separable cover extending over the top of the said block andsupported thereby, a reflector or shade holding means, and means forsupporting the latter independently of the said block.

.7. An electric lighting fixture comprising an insulating block havingmeans therein for supporting an electric lamp and electrical connectionstherefor, a separable cover for. the said block, a reflector or shadeholding means located below the said block and engaging therewith and[means extending through the saidblock for supporting the said reflectoror shade holding means independentlyof the said block and the saidlouver. -w1tness whereof,'.I have hereunto set 22nd day of September1913. WILFRID LUMLEY. ,Witnesses: 1

W. S. ABBOTT, f W. E. Masmas my: hand this Copies of this patent may beobtained for five cents each, by addressing the commissioner of Patents,

Washington, D. 0," v

